6866719: Rename execvpe to avoid symbol clash with glibc 2.10

Reviewed-by: darcy

src/solaris/native/java/lang/UNIXProcess_md.c

@@ -447,12 +447,14 @@ execve_with_shell_fallback(const char *file,
 }
 
 /**
- * execvpe should have been included in the Unix standards.
- * execvpe is identical to execvp, except that the child environment is
+ * 'execvpe' should have been included in the Unix standards,
+ * and is a GNU extension in glibc 2.10.
+ *
+ * JDK_execvpe is identical to execvp, except that the child environment is
  * specified via the 3rd argument instead of being inherited from environ.
  */
 static void
-execvpe(const char *file,
+JDK_execvpe(const char *file,
             const char *argv[],
             const char *const envp[])
 {
@@ -644,7 +646,7 @@ childProcess(void *arg)
     if (fcntl(FAIL_FILENO, F_SETFD, FD_CLOEXEC) == -1)
         goto WhyCantJohnnyExec;
 
-    execvpe(p->argv[0], p->argv, p->envv);
+    JDK_execvpe(p->argv[0], p->argv, p->envv);
 
  WhyCantJohnnyExec:
     /* We used to go to an awful lot of trouble to predict whether the